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、阅读理解（本大题共5小题，共0分） A p a country keep the customs and beauty that attract tourists. Tourism should also advance the well-being (health and happiness) of local inhabitants. Too much tourism can be a problem. If tourism grows too quickly, people must leave other jobs to work in the tourism industry. This means that other parts of the country's economy can suffer. On the other hand, if there is not enough tourism, people can lose jobs. Businesses can also lose money. It costs a great deal of money to build large hotels, airports, air terminals, first-class roads, and other support facilities (设施) needed by tourist attractions. For example, a major international-class tourism hotel can cost as much as 50 thousand dollars per room to build. If this room is not used most of the time, the owners of the hotel lose money. Building a hotel is just a beginning. There must be support facilities as well, including roads to get to the hotel, electricity, sewers (阴沟) to handle waste, and water. All of these support facilities cost money. If they are not used because there are not enough tourists, jobs and money are lost. 1. Which of the following has most probably been discussed in the paragraph that goes before the passage? A. It is extremely important to develop tourism. | 
